Surname Kolomijchuk (Коломийчук 
, Kolomijchuk 
) , worldwide, is a rare family name. The surname Kolomijchuk is characteristic of Ukraine, where it is a rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Коломийчук | Kazakhstan, Russia, Ukraine, Belarus |
| Kolomijchuk | Canada |